import math

println(Math.abs(15))
printf('%.3f\n', Math.abs(-3.14))
printf('%.3f\n', Math.sin(10))
printf('%.3f\n', Math.sin(12.34))
printf('%.3f\n', Math.cos(10))
printf('%.3f\n', Math.cos(12.34))
printf('%.3f\n', Math.tan(10))
printf('%.3f\n', Math.tan(12.34))
println(Math.pow(2, 3))
printf('%.3f\n', Math.pow(2, 3.5))
printf('%.3f\n', Math.pow(2.5, 3))
printf('%.3f\n', Math.pow(2.5, 3.5))
printf('%.3f\n', Math.exp(2))
printf('%.3f\n', Math.exp(3.14))
printf('%.3f\n', Math.ln(25))
printf('%.3f\n', Math.ln(12.56))
printf('%.3f\n', Math.log10(25))
printf('%.3f\n', Math.log10(12.56))
printf('%.3f\n', Math.sqrt(2))
printf('%.3f\n', Math.sqrt(31.5))
printf('%.3f\n', Math.round(7))
printf('%.3f\n', Math.round(8.3))
printf('%.3f\n', Math.round(12.9))
printf('%.3f\n', Math.ceil(7))
printf('%.3f\n', Math.ceil(8.3))
printf('%.3f\n', Math.ceil(12.9))
printf('%.3f\n', Math.floor(7))
printf('%.3f\n', Math.floor(8.3))
printf('%.3f\n', Math.floor(12.9))
